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Finding the Fourth Proportional to 47,008.67, 64,871.87 and 25,787.88

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Solution

The fourth proportional to 47,008.67, 64,871.87 and 25,787.88 is: 35,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,008.67 : 64,871.87 = 25,787.88 : x
  2. Step 2: Convert to fraction form
    47,008.67/64,871.87 = 25,787.88/x
  3. Step 3: Cross multiply
    47,008.67x = 64,871.87 × 25,787.88
  4. Step 4: Simplify right side
    47,008.67x = 1,672,907,870.00
  5. Step 5: Solve for x
    x = 1,672,907,870.00/47,008.67
  6. Step 6: Final answer
    x = 35,587.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.